13880020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9013}}^1$

素因数の和:9040

約数の個数: 48

約数和(自身を含む): 36344448

約数和(自身を除く): 22464428

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 9013, 18026, 36052, 45065, 63091, 90130, 99143, 126182, 180260, 198286, 252364, 315455, 396572, 495715, 630910, 694001, 991430, 1261820, 1388002, 1982860, 2776004, 3470005, 6940010, 13880020]

約数ペア:

[(1, 13880020), (2, 6940010), (4, 3470005), (5, 2776004), (7, 1982860), (10, 1388002), (11, 1261820), (14, 991430), (20, 694001), (22, 630910), (28, 495715), (35, 396572), (44, 315455), (55, 252364), (70, 198286), (77, 180260), (110, 126182), (140, 99143), (154, 90130), (220, 63091), (308, 45065), (385, 36052), (770, 18026), (1540, 9013)]